When the class bully disappears on a field trip to the River City Zoo, James Shoo, known as "Gum" and the other sixth-grade detectives are determined to find out what happened, and it is up to the reader to choose what direction their investigation will take

When the class bully disappears on a field trip to the River City Zoo, James Shoo, known as "Gum" and the other sixth-grade detectives are determined to find out what happened, and it is up to the reader to choose what direction their investigation will take

When the class bully disappears on a field trip to the River City Zoo, James Shoo, known as "Gum" and the other sixth-grade detectives are determined to find out what happened, and it is up to the reader to choose what direction their investigation will take